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(No Model.)

I. S. OLARKSON.

SASH CORD FASTENER.

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Patented Jan. 19

NrED STATES ATENT- Grinch.

FRANK S. CLARKSON, OF BALTIMORE, MARYLAND, ASSIGNOR OF THREE- FOURTHS TOFRANK B. SLOAN, OF SAME PLACE.

SASH-CORD FASTEN ER. f

SPECIFICATION forming part of Letters Patent N 0. 467,156, dated January19, 1892.

Application filed October 28, 1891. Serial No. 410,051. (No model.)

To all whom, it may concern:

Be it known that I, FRANK S. CLARKSON, of Baltimore, in the State ofMaryland, have invented certain new and useful Improvements inSash-Balances; and I do hereby declare the following to be a full,clear, and exact description of the invention,such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention relates to that class of sashbalances in which the sash andbalancingweights are supported by flexible metal ribbon passing overpulleys in the window-frame and secured at their opposite ends to thesash and weights.

The object of the invention is to provide simple and effective means forsecuring the ribbon to the weight and sash; audit consists in certaindetails in construction and combinations of parts, as will be more fullydescribed, and pointed out in the claims.

In the accompanying drawings, Figure 1is a view in perspective of myimproved fastening device applied to the weight end of the ribbon. Fig.2 is a'view in elevation of the fastening device applied to the sash.Fig. 3 is a view in transverse section of the fastening device appliedto the sash; and Fig. at is a view of the same, showing the partsseparated.-

The fastening device for the weight end of the ribbon and the fasteningdevice for the sash end of the ribbon are, so far as the attachment ofthe ribbon is concerned, constructed alike, and hence a description ofone will suffice for both.

The fastening device for the sash end of the ribbon consists,essentially, of a body A, preferably circularin form and provided atoneside with an extension a, having a perforation ct therein for thepassage of a fastening-screw by which the body is secured within therecess in the sash. This perforated extension, while it is desirable, isnot absolutely necessary, as the body could be set within a recess, and,fitting tightly therein, would be held by friction alone. This fasteningdevice or body is 10 cated below the upper edge of the sash and thelatter is grooved above said body for the reception of the ribbon. Thebody proper is provided on its outer face at diametrically-oppositepoints with raised seats I), each having screw-threaded holes thereinadapted to register with holes formed in the side edges of theholding-block B. The spacebetween the raised seats I) is sufficientlywide for the re ception between them of the ribbon O and also for thebody of the holdingblocks B. Each holding-block is approximatelycircular in form, and is grooved on its outer face and upper and loweredges for the reception of the ribbon O, and is provided on its innerface with recesses cl, corresponding in position and shape to the raisedseats I) on the body A. The ribbon is preferably wrapped once around theblock, and is secured to the fastener andheld against the possibility ofdisplacement by the screws E, which latter are passed through the blockand, engaging the threads in the bodyA, hold the block againstdisplacement.

From the foregoing it will be seen that the body of the fastener can besecured to the sash and the block with the ribbon thereon attachedthereto without disturbing the body, and by providing the body withraised seats, which enter corresponding recesses in the block, thestrain is borne entirely by the I body and block, the screws merelyserving to prevent separation of the parts.

The fastening device for the weight end of the ribbon is composed of abody and block, as above described, the latter beingidentical inconstruction with the block for the sash, and hence interchangeabletherewith. The body A is provided with a curved extension f, having twoopenings or holes therein for the reception of the hook ends 9 of theWire yoke G, which latter carries the weight.

By constructing the fastening devices as above described all possibilityof the ribbon slipping is avoided, and if the ribbons are appliedproperly at the start kinks or bends therein are prevented and liabilityof breaking the ribbon, except by the weight of the sash or weight, isabsolutely avoided.

While I 4, have shown and described the body A provided with seats orprojections and the block with recesses, it is evident that the positionof these parts can be changed, and while the seat and correspondingrecesses are desirable, nevertheless they might be dispensed withaltogether. Hence I would have it understood that I do not confinemyself to the exact construction of parts shown and described, butconsider myself at liberty to make such changes and alterations thereinas fairly fall within the spirit and scope of my invention.

Having fully described myinvention, what I claim as new, and desire tosecure by Letters Patent, is

1. A fastener for metal ribbons, consisting, essentially, of a bodyhaving holes therein, a block around which the ribbon is adapted to bewound, provided with holes corresponding in position to the holes in thebody, and screws passing through the block and body and engagingscrew-threads in one of said parts, substantially as set forth.

2. A fastener for metal ribbons, consisting, essentially, of a bodyhaving raised seats thereon, a block around which the ribbon is adaptedto be wound, the said block having recesses corresponding in position tothe seats on the body, and screws passing through the seats on the body,and screws passing through the block and engaging the body,substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

FRANK S. CLARKSON.

\Vitnesses:

C. S. DRURY, A. W. BRIGHT.

